Form and posture corrective chair



Sept. 27, 1949.- R, E, WBY 2,%s2,99e

FORM AND POSTURE CORRECTIVE CHAIR Filed May 27, 1946 13 BY Robe/*7 W/fsg ATTORNI: Y.

1 '1 j h g 23 21 4 v INVENTOR.

Patented Sept. 27, 1949 UNITED STATES PATENT OFFICE 2,4s2,99.e 7' FORM AND POSTURE coRREorrvE CHAIR Robert E. Wisby, Abilene, Kans. Application May 27, 1946, Serial 672,505 i My invention relates to an improvement in form and posture corrective chairs. The object of the invention is to provide a chair that is so constructed that it prevents the fat of the buttocks of a person seated therein from spreading out from under the weight of the body, allowing a gradual increase to accumulate here. By confining this tissue under the weight of the body, the continual massaging produced by the ordinary movements of the sedentary worker causes this tissue to be disturbed to the point it is broken down and carried away by the circulation.

A further object is to hold the adipose tissue, plus the fat under the tuberosities of the innomimates to which attach the gluteal muscles furnish a cushion to prevent them from becoming irritated, causing many abnormalities such as hemorrhoids, etc.

A still further object is to provide a chair of the kind mentioned and having a spring back support which also puts a pressure to the posterior tissues which conform to the side support and giving a very firm support to the lumbar region in the form of an automatic pressure or support.

A still further object is to provide a chair of the kind mentioned and having an eminence on the floor of the chair, between the thighs just anterior to the pelvis prevents the person from sliding forward and distorting the natural curves of the spinal column.

A still further object is to provide a chair of the kind mentioned and having rockable sides and back portions of the seat, the top edges of which are provided with a slight roll or beading that gives resistance to the flesh that would be forced up along the sides.

These and other objects will be more fully explained as this description progresses.

Now referring to the accompanyin drawings in which similar numerals of reference designate the same parts throughout the several figures of the drawings:

Fig. 1 is a front view of the chair.

7 Fig. 2 is a side view of the chair, both sides being alike. 1

Fig. 3 is a top plan and sectional view of the chair, the view being taken along the line III-III in Fig. l and looking in the direction of the arrows. I i

Fig. 4 is a cross sectional detail view of the chair, the view being taken along the line IV--IV in Fig. 3 and lookin in the direction of the arrows. V I

Fig. 5 is a longitudinal sectional detail view of the chair, the view being taken along the line V-V in Fig. 3 and looking in the direction of the BIII'OWS.

Fig. 6 is an enlarged detail sectional view through the seat construction of the chair, the

3 Claims. (Cl; 155-1) view being taken alon and looking in the direction of the arrows.

In the'drawings the chair is shown as having a base'se'at element It] supported on four leg elements l L12, l3 and i l, and'a back cross piece [5 that is rigidly attached to the upper ends of a pair 'of side support standards It and H, the lower ends of which are rigidly mounted'in the seat base element l0.

The seat proper is composed of 'two similar and opposing sections !8 and I9, each having a side and rear portion A that is curved upwardly to conform to the shape of the leg and buttocks portion of a persons body. The two opposite side edges of the seat elements l8 and [9 are rockably mounted on the opposite side edges of the base seat element [0 and are attached thereto by means of hinges 20, 2|, and '22 and 23. The center 01' adjacent edges of the seat sections l8and H! are yieldably rocked upwardly, and the side and rear portions thereof rocked outwardly by means of a pair of leaf springs 25 and 26; the outer ends of which are rigidly attached by means of screws or other suitable fastening means to the base seat element It with the inner and adjacent end portions of the springs 25 and 26 yieldably supporting the inner or adjacent edges of the seat elements l8 and IS. The lower leaf of each hinge 20, 2 l, 22 and 23 lies flat on the seat base element "land is provided with a bolt hole through which is passed a bolt X that also passes through transversely positioned slots 21 in the base seat element it. Threaded on the lower ends of the bolts X is a win nut '28 by which the associated hinge leaves may be rigidly held in adjusted transverse positions on the base seat ele-' ment l0. t

The upper, inner edges of the seat members is and [9 are slightly curved inwardly, or even made as an inwardly projecting bead mold Y as mentioned in the objects of this specification.

Fitted over the central portion of, and over the opening between the two seat members is and l 9' is a comparatively thin and springy shield piece of sheet material 29, preferably metal. The rear portion of theshield 29 curves upwardly and is bent in a hooklike shape 29a that is fitted snugly over the rear top adjacent edge portions of the seat members is and W to station, or prevent forward or side way movements of the shield 29. The front central portion of the shield 29 is provided with an upwardly projecting formation 30, beginning at the front of the shield 29 and sloping upwardly and rearwardly therefrom to a point approximately midway between front and rear of the shield 29 and sloping upwardly and rearwardly therefrom to a point approximately midway between front and rear of the shield 29 and seat members it and f9 and at which point the formation 30 stops or terminates with substanthe line VI- VI in Fig. 3

tially vertical edges 3|, the object of which will later be described.

The chair is provided with a back support 32 that is made of springy material, preferably a sheet of'comparatively/ thin spring-steel, and is curved to fit the back of a person sittin in the chair. The upper end of the back rest 32 is rigidly attached to the upper cross bar l5 of thechair and is tensioned to spring forwardly; The.- lower end of the back rest 32 is bent rearwardly as at 33 to clear and pass over the hook portion 29a of the shield 29 and then-.bent-dow-nwardly as at 34, the lower end of which is seated under spring pressure of the back rest 32 in a receiving notch 35 in the rear edge of the base seat elemonk-10;

The chair-is adjustablezfor-use as follows. The wing nuts 2% may be unscrewed or loosened on the-bolts X whereupon' the-seat members l8" and HI;maybezslippedtowardor-away from each other to provide the proper spacing of the upturned sides of theseatmembers, l8; and I9 to fit the width.- ofi the rbuttoeks and: thigh portion of the body of the person who is toz-use-thechair. The

propeiradjlustment havingbeenmade, the wing nuts is'may'bescrewed or-tightenedon the bolts Xlto rigidlyv bind" and: hold the seat members I81 and Mai-n.their'adjustedposition. The chairseat having-1 thus-been: adjustedi is now ready for use and: performs as follows.

Whom the person: sits on the seat members l8 and lfirthes adjacentaedges-thereof will'rock. downwardly and the sides thereof will rock inwardlyby reason: ofy the weight of the person thereon, whereupon, to holdand press thefieshy or fat parts: of: the. body under the bone structure and weight of the bod-y as: and. for the purpose described in: the; beginning of; this specification. Also. the upwardly projecting formation 3H. will enter: between the legs and: into the crotch of When-one is seated'and held improper-position im the chair: as above described, the spring back: support 32 will rest or press against the back: of thezpersonz in: the propercurvatureto; fit the correct. curveof, the back: and therefore properly; I

support the back of? the person, thus the'person; when s-ltting' irrv the'ch'airr is forced and supported: into the idealandlproper position or osture which i's'theohject'of the invention; This chair is de signedl particularly'for use by children inschool, or older people-in oifices or in homes and the like; who are inclined to' have extremely heavyon fat buttocks and thigh body; portions, and whosegeneralposture is in need of correction as" above-describedi Such-modifications-of myinvention-maybeemployedi as lie within the scope of the appended claimswithout departing from the spirit and intentionof-theinvention; Now having fully show-n andrdescnibed-my-invention, what I claimis:

1 In, a form and. posture-corrective chair; said chair having aframe.- structure and seat, saidseathavingupwardly turned sides and-rear poi tions, said seat being divided at the central portion and from front to back, to provide two 0pposing seat sections, said seat sections being rockably mounted on opposite sides of the frame structure, of thechairgand means for yieldablyelevating the adjacent centrai edge portions of the two seat sections, said frame structure having albase seat element included therein, the rockable. seatmountings being hinges, one leaf of each hinge being rigidly attached to its respective seats section, the other leaf of each of said hingesresting on the base seat element of the chair andbeing rigidly attached thereto.

2:.Ii1;a2f0rm and posture corrective chair; said chair having a frame structure and seat, said seat havingupw-ardly turned sides and rear portions, saidrseatr being dividedrat thecent-iial portion and; from front to back, to provide1two.-opposing, seat. sections, said gseat. sectionsbeing rookably mounted ontopnosite-sides-of the frame :structureof the, chair, and-rmeans foryieldably elevating the ad? jacent; central edge pontions-of the two seat sec-- tions, said framestructure having abaseseat olem'ent includedztherein, therockable seat mount-- ings being: hinges, one leaf ofeach hingebeingv rigidiyiattached to .-its peotive seatsection, the othen leaf of each of saidhinges resting on. the' base seat element of the chair and being rigidly attached; thereto, sections: being adjustable toward and:awayfrornea'ch other, the adjustment of; said: seat sections comprising. a belt that. is passed through thesecondleaf of each hingeand a transversely positioned slot in; the bESQicSBELtfEZG ment for and through which passes eaolrbolt, and threaded means on, each bolts for rigidly clamping and holdingthe .second-tsaidleaf of each hingein transverse adj usted= positions on. thesaid: base seata element.

3." In a;f,0r,-m' and posturecorrectivechair; said, chair. havingaframe str-uet-ureand seat, said seat" having uprwardi-y turned: sides; and rear portions, saidseat-beingdivided at-the central-portion and, from front to back-,toiprovide'two opposing seat sections, said seat sections'being rockabl-y mounted on. opposite-sides of: theframe structure of; the chair, and means for yieldably elevating: the act-- jacent central: edge portions of the two-seat sections, a: shield, said-1 shield being positioned over: theopening-hetween the two seat sections as a closure therefor, said chair having a high emi-- hence atthe: front central portion of theseat, said eminence extending: from thefront of the seat to a point approximately midway the back of the seat,.said@eminencesloping upwardly from-,- fronttto backzand-terminating in aivert-ical defining plane atithe-rearend; thereof;

ROBERT WIS-BY.

REFERENCES CITED- The'following references are-of record in the file of this patent:

UNITED STATES, PA'IENTS Number Name Date 537,37 6 Wright et a1 Apr. 9; 1895: 608 089 WeHman- July 26, 1898 6119368 ."Liewisv Feb. 21, 1899* 62$);956 (Iraigr ,Aug. 1,11%99 1,079,795 Naysmith Nov. 25, 1913:

0 amaze Carlton: Oct. 9, 1934 2,139,028. Mensendicelcet a1; Dec. 61 1938? 

